Open AccessOne-shot synthetic aperture digital holographic microscopy with non-coplanar angular-multiplexing and coherence gating
Author(s) -
Yu Chih Lin,
Han Yen Tu,
Xin Ru Wu,
Xin Ji Lai,
Chau Jern Cheng
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.012620
Subject(s) - optics , digital holographic microscopy , coherence (philosophical gambling strategy) , multiplexing , holography , digital holography , physics , grating , spatial light modulator , one shot , gating , computer science , telecommunications , engineering , mechanical engineering , quantum mechanics , physiology , biology
This paper proposes one-shot synthetic aperture digital holographic microscopy using a combination of angular-multiplexing and coherence gating. The proposed angular-multiplexing technique uses multiple noncoplanar incident beams into the synthetic aperture to create tight packed passbands so as to extend spatial frequency spectrum. Coherence gating is performed to prevent the self-interference among the multiple beams. Based on the design guideline proposed herein, a phase-only spatial light modulator is employed as an adjustable blazed grating to split multiple noncoplanar beams and perform angular-multiplexing, and then using coherence gating based on low-coherence-light, superresolution imaging is achieved after one-shot acquisition.